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On Reachability for Unidirectional Channel Systems Extended with Regular Tests

Jancar Petr ; Prateek Karandikar ; Philippe Schnoebelen.

"Unidirectional channel systems" (Chambart & Schnoebelen, CONCUR 2008) are finite-state systems where one-way communication from a Sender to a Receiver goes via one reliable and one unreliable unbounded fifo channel. While reachability is decidable for these systems, equipping them with the&nbsp;[&hellip;]

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Countdown games, and simulation on (succinct) one-counter nets

Petr Jancar ; Petr Osicka ; Zdenek Sawa.

We answer an open complexity question by Hofman, Lasota, Mayr, Totzke (LMCS 2016) for simulation preorder on the class of succinct one-counter nets (i.e., one-counter automata with no zero tests where counter increments and decrements are integers written in binary); the problem was known to be&nbsp;[&hellip;]

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